Automobile rear suspension device

Abstract

The utility model provides an automobile rear suspension device, and belongs to the technical field of automobile accessories. The problem that in the prior art, the strength of an automobile rear suspension structure is not high enough is solved. The hanging bracket comprises a hanging bracket body, an upper connecting arm and a lower connecting arm, upper fixing grooves are formed in the two sides of the upper end of the hanging bracket body, lower fixing grooves are formed in the two sides of the lower end of the hanging bracket body, the upper connecting arm and the lower connecting arm are fixedly connected with the upper fixing grooves and the lower fixing grooves respectively, a through groove is formed in the lower connecting arm, and a side push-pull rod is fixedly connected in the through groove. A clamping piece body is fixedly installed at the top end of the suspension frame body, a fulcrum arm is fixed in the clamping piece body, the upper end of the side push-pull rod is connected with the fulcrum arm, a triangular support is fixed at the top end of the suspension frame body, a triangular groove is formed in the triangular support, one end of the fulcrum arm is fixedly connected with a spring damping device, and one end of the spring damping device is fixedly connected with the triangular groove. The utility model has the advantages of high structural strength and stable structure.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile parts and relates to an automobile rear suspension device. Background Art

[0002] The form of an automobile rear suspension is the general term for all force transmission connecting devices between the vehicle frame (or a load-bearing body) and the axle (or wheels), and is one of the important parameters affecting the comfort of an automobile.

[0003] Chinese Patent with the patent announcement number CN205202658U discloses a semi-independent automobile rear suspension, including: a left drag arm, a right drag arm, a cross beam and a movable connecting member. Both ends of the cross beam are respectively movably connected to the left drag arm and the right drag arm through a movable connecting member. The movable connecting member includes a left universal joint and a right universal joint. One end of the cross beam is connected to the left drag arm through the left universal joint, and the other end of the cross beam is connected to the right drag arm through the right universal joint. The use of universal joints realizes the large-angle movable connection between the left drag arm, the right drag arm and the cross beam. The movable connecting member includes a left ball head bearing, a left bearing sleeve matching the left ball head bearing, a right ball head bearing and a right bearing sleeve matching the right ball head bearing. The left bearing is embedded in the left drag arm, the left ball head bearing is connected to the left bearing sleeve, the right bearing is embedded in the right drag arm, and the right ball head bearing is connected to the left bearing sleeve.

[0004] In the semi-independent automobile rear suspension provided by this patent, only by arranging movable connecting members at both ends of the cross beam, the structural strength of this structure is not high during use. Summary of the Utility Model

[0005] The purpose of the utility model is to provide an automobile rear suspension device for the above problems existing in the prior art.

[0006] The purpose of the utility model can be realized by the following technical solutions: an automobile rear suspension device, including a suspension frame body, an upper connecting arm and a lower connecting arm. Upper fixing grooves are formed on both sides of the upper end of the suspension frame body, and lower fixing grooves are formed on both sides of the lower end of the suspension frame body. The upper connecting arm and the lower connecting arm are respectively fixedly connected to the upper fixing groove and the lower fixing groove. A through groove is formed in the lower connecting arm, and a side push pull rod is fixedly connected in the through groove. A clip body is fixedly installed at the top end of the suspension frame body, and a fulcrum arm is fixed in the clip body. The upper end of the side push pull rod is connected to the fulcrum arm. A triangular bracket is fixed at the top end of the suspension frame body, and a triangular groove is formed in the triangular bracket. One end of the fulcrum arm is fixedly connected to a spring shock absorber device, and one end of the spring shock absorber device is fixedly connected to the triangular groove.

[0007] In the above-mentioned automobile rear suspension device, an upper connecting groove is formed at the end of the upper connecting arm, a lower cylindrical bushing is formed at the end of the lower connecting arm, the lower cylindrical bushings are symmetrically arranged, and a lower connecting groove is formed between the lower cylindrical bushings.

[0008] In the above-mentioned automotive rear suspension device, a steering knuckle is fixedly installed between the upper connecting arm and the lower connecting arm. An upper cylindrical bushing is formed at the upper end of the steering knuckle, and the upper cylindrical bushing is connected to the upper connecting groove. The lower end of the steering knuckle is connected to the lower connecting groove.

[0009] In the above-mentioned automotive rear suspension device, a transfer case body is fixedly installed inside the suspension frame body. An arc-shaped groove is formed on the suspension frame body, and the arc-shaped groove is in close contact with the bottom of the transfer case body.

[0010] In the above-mentioned automotive rear suspension device, the triangular bracket extends out of one side of the suspension frame body. A reinforcing plate is arranged on the triangular bracket, and the reinforcing plate is fixedly connected to the side surface of the suspension frame body.

[0011] Compared with the prior art, the automotive rear suspension device provided by the present utility model has the following beneficial effects: 1. Through the structural arrangement of the upper connecting arm and the lower connecting arm, the lower connecting arm is a flat block structure with relatively high strength; 2. Through the structural arrangement of the triangular bracket and the triangular groove, the spring shock absorber device can be stably connected to the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0013] Figure 2 is a schematic diagram of the structure of the present utility model from another angle;

[0014] Figure 3 is a schematic diagram of the structures of the upper connecting arm and the lower connecting arm;

[0015] Figure 4 is a schematic diagram of the structure of the suspension frame body.

[0016] In the figure: 1. Suspension frame body; 11. Upper fixing groove; 12. Lower fixing groove; 13. Clip body; 14. Arc-shaped groove; 2. Upper connecting arm; 21. Upper connecting groove; 3. Lower connecting arm; 31. Through groove; 32. Lower cylindrical bushing; 33. Lower connecting groove; 4. Side push pull rod; 5. Fulcrum arm; 6. Triangular bracket; 61. Triangular groove; 62. Reinforcing plate; 7. Spring shock absorber device; 8. Steering knuckle; 81. Upper cylindrical bushing; 9. Transfer case body. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The following are specific embodiments of the present utility model in combination with the accompanying drawings, and the technical solutions of the present utility model will be further described, but the present utility model is not limited to these embodiments.

[0018] As Figures 1 to 4As shown in the figure, this embodiment includes a suspension frame body 1, upper connecting arms 2 and lower connecting arms 3. The number of both the upper connecting arms 2 and the lower connecting arms 3 is two. Upper fixing grooves 11 are formed on both sides of the upper end of the suspension frame body 1, and lower fixing grooves 12 are formed on both sides of the lower end of the suspension frame body 1. The upper connecting arms 2 and the lower connecting arms 3 are respectively fixedly connected to the upper fixing grooves 11 and the lower fixing grooves 12. The upper connecting arms 2 and the lower connecting arms 3 are arranged in a symmetric structure. Through grooves 31 are formed in the middle of the two lower connecting arms 3, and side push pull rods 4 are fixedly connected in the through grooves 31. The number of the side push pull rods 4 is two and the two side push pull rods 4 are arranged in an inwardly inclined symmetric structure. Two clamping pieces 13 are fixedly installed at the top of the suspension frame body 1, and a fulcrum arm 5 is fixed in each clamping piece 13. The upper end of the side push pull rod 4 is connected to the fulcrum arm 5. A spring shock absorber 7 is fixedly connected to one end of the fulcrum arm 5. A triangular bracket 6 is fixed at the rear side of the top of the suspension frame body 1. Two triangular grooves 61 are formed in the triangular bracket 6. The two spring shock absorbers 7 are arranged in a symmetrically inwardly buckled structure. One end of the spring shock absorber 7 extends into the triangular groove 61 and is fixedly connected to the triangular bracket 6.

[0019] For further details, as Figures 1 to 2 shown in the figure, the triangular bracket 6 extends out of the rear side of the suspension frame body 1. A reinforcing piece 62 is arranged on the triangular bracket 6, and the reinforcing piece 62 is fixedly connected to the side surface of the suspension frame body 1. The reinforcing piece 62 improves the structural strength of the triangular bracket 6, making the structure of the spring shock absorber 7 installed on the triangular bracket 6 more stable.

[0020] As Figures 1 to 4 shown in the figure, an upper connecting groove 21 is formed at the outer end of the upper connecting arm 2. Two lower cylindrical bushings 32 are formed at the end of the lower connecting arm 3. The lower cylindrical bushings 32 are symmetrically arranged and a lower connecting groove 33 is formed between the lower cylindrical bushings 32. A steering knuckle 8 is fixedly installed between the upper connecting arm 2 and the lower connecting arm 3. An upper cylindrical bushing 81 is formed at the upper end of the steering knuckle 8. The upper cylindrical bushing 81 extends into the upper connecting groove 21 to connect the steering knuckle 8 with the upper connecting arm 2. The lower end of the steering knuckle 8 extends into the lower connecting groove 33 formed by the lower cylindrical bushings 32 to connect the steering knuckle 8 with the lower connecting arm 3.

[0021] For further details, as Figures 1 to 2 shown in the figure, a transfer case body 9 is fixedly installed inside the suspension frame body 1. An arc-shaped groove 14 is formed on the suspension frame body 1, and the arc-shaped groove 14 is in fit with the bottom of the transfer case body 9, playing a role of stable fixation.

[0022] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the technical field to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0023] Although this text uses various terms extensively, it does not exclude the possibility of using other terms. The use of these terms is only for the purpose of more conveniently describing and explaining the essence of this utility model; interpreting them as any additional limitation is contrary to the spirit of this utility model.

Claims

1. An automotive rear suspension device, comprising a suspension frame body (1), an upper connecting arm (2) and a lower connecting arm (3), characterized in that: On both sides of the upper end of the suspension frame body (1), upper fixing grooves (11) are formed. On both sides of the lower end of the suspension frame body (1), lower fixing grooves (12) are formed. The upper connecting arm (2) and the lower connecting arm (3) are respectively fixedly connected to the upper fixing groove (11) and the lower fixing groove (12). A through groove (31) is formed in the lower connecting arm (3), and a side push pull rod (4) is fixedly connected in the through groove (31). A clip body (13) is fixedly installed at the top end of the suspension frame body (1), a fulcrum arm (5) is fixed in the clip body (13), the upper end of the side push pull rod (4) is connected to the fulcrum arm (5), a triangular bracket (6) is fixed at the top end of the suspension frame body (1), a triangular groove (61) is formed in the triangular bracket (6), one end of the fulcrum arm (5) is fixedly connected to a spring shock absorber device (7), and one end of the spring shock absorber device (7) is fixedly connected to the triangular groove (61).

2. The automotive rear suspension device according to claim 1, wherein: An upper connecting groove (21) is formed at the end of the upper connecting arm (2). Lower cylindrical bushings (32) are formed at the ends of the lower connecting arm (3). The lower cylindrical bushings (32) are symmetrically arranged, and a lower connecting groove (33) is formed between the lower cylindrical bushings (32).

3. The automotive rear suspension device according to claim 2, characterized in that: A steering knuckle (8) is fixedly installed between the upper connecting arm (2) and the lower connecting arm (3). An upper cylindrical bushing (81) is formed at the upper end of the steering knuckle (8), and the upper cylindrical bushing (81) is connected to the upper connecting groove (21). The lower end of the steering knuckle (8) is connected to the lower connecting groove (33).

4. A rear suspension device for an automobile according to claim 1, wherein: A transfer case body (9) is fixedly installed inside the suspension frame body (1). An arc-shaped groove (14) is formed in the suspension frame body (1), and the arc-shaped groove (14) is in fit with the bottom of the transfer case body (9).

5. A rear suspension device for an automobile according to claim 1, characterized in that: The triangular bracket (6) extends out of one side of the suspension frame body (1). A reinforcing piece (62) is arranged on the triangular bracket (6), and the reinforcing piece (62) is fixedly connected to the side surface of the suspension frame body (1).

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